Cutting-tool



A. HUSSEY. CUTTING TOOL.

(No Model.)

No; 528,725. Patented Nov. 6, 1894.

' NvENTu R: V4.7

' UNITED STATES PATENT/ OFFICE.

ALBERTUS HUSSEY, OF MILFORD, ASSIGNOR F ONE-HALF TO 0. ATnEa'roNSHEPARD, OF BROOKLINE, MASSACHUSETTS.

CUTTING-TOOL- SPECIFICATION forming part of Letters Patent No. 528,725,dated November 6, 189 4..

Application filed January 15, 1894- Serial No. 496,907. (No model.)

To all whom it may concern:

Be it known that I, ALBERTUS HUSSEY, of

Milford, in the county of Worcester and State the pattern to be made bythe tool may be.

formed axially in its sides so that the tool may be ground on a bevel onthe side opposite to that in which the pattern is formed, and the toolemployed until its eflicient length is used up from wear andre-sharpening by grinding, without changing the pattern by use; third,the provision of other improvements incidental to the foregoing, all aswill hereinafter more fully appear.

To these ends the invention consists of the improvements which I willnow proceed to describe and claim.

Reference is to be had to the annexed drawings and to the letters andfigures marked thereon forming a part of this specification, the sameletters and figures designating the same parts or features as the casemay be, wherever they occur.

Of the drawings, Figure l is a front view of the improved cutting toolwith a sectional view of a strip of molding on which it is shown asoperating. Fig. 2 is an edge view of the improved tool. Fig. 3 is aperspective view of the same. Fig. 4. is a plan view of the same. Fig. 5is a sectional view taken on the line 5 5 of Fig. 1. Fig. 6 is a diagramdesigned to show the form of the cutting edge in plan view. Fig. 7 is aplan view of a strip of molding which maybe formed by the tool. Fig.8 isa sectional view of a strip of molding which may be formed by a slightlymodified form of cutter.

In the drawings-a designatesthe body of the improved cutter and bis theefficient blade portion, extending from the cutting edges 0 c to thebase d of the body.

e is the shank of the tool which may be made to fit any chuck like ananger, or of tapering form to fit any socket round, square W or spiralshaped, or may have a socket formed in the body of the tool to fit anyshank or spindle.

The blades 2 3 proper of the blade portion 1) are formed on an incline,slightly curved with respect to the axis of the tool, so that the actionof the cutting edges may be inclined with respect to the grain of thewood when the axis of rotation is parallel therewith or at right anglesthereto, as, in use, it generally will be. The blades at their outeredges may be beveled axially with the tool, as at ff, so as to affordinclined cutting edges 9 g.

The body portions 0 a will overlap at their inner ends, extending asthey do beyond but outside of the axis of the of the cutting edges tool,and are joined by a diagonal cutting web h, as is clearly shown in Figs.3, 4 and 6.

To form the pattern for the molding or other article to be cut, theblades 2 3 are milled out, the one on the opposite side from the otheras at z' 2', in conformity with such pattern for the full length of saidblade on a line with the axis of the cutting tool. With thisconstruction I am enabled to sharpen the blades by a single grinding ofeach on a single bevel on the side opposite to that milled out to formthe pattern, and use'the tool until the blades I are worn out up to thebody.

Fig. 7 shows the pattern of a molding formed from a tool constructed asshown in Figs. 1 to 6, inclusive; said molding being formed by rotatingthe tool against the face of the strip to form a recess of the desireddepth, then moving the tool or the strip along the distance of one-halfthe circle described by the tool I and again forming a recess, and soon, and Fig. 8 in cross-section shows a piece of molding which may beout by a tool having a modified form of molding milled out thereon.These two views of a molding serve but to illustrate the almost infinitevariety of patterns that may be made by a variation in the form of themillings 'i. 1

It will be noted that no part of the cutting edges of the blades is aradius of the circle made by the revolution of the tool, which, with theinclination of the blades before mentloned, insures a substantialdraw-cut and avoids a scraping action, thus securing a smooth shaving ofthe wood. By molding the cutter so as to raise or depress the center, itwlll be understood that the draw-cutting or shaving action of the bladeswill be correspondingly increased.

By overlapping the cutting edges at the center and joining the same bythe diagonal or Inclined cutting web h, the center of the cut made bythe tool is fully covered so that the center of the pattern is clean ofcenter or other marks.

The center web 7?. outs both ways, avoiding any drag or rubbing, andcovers perfectly the center of rotation in addition to its being coveredby the overlapping cutting edges of the blades.

The fact that each blade can be ground on a single bevel, and preserveintact the pattern for the molding is an important feature of theinvention. Having thus explained the nature of the Invention anddescribed a way of constructing and using the same, though withoutattempting to set forth all of the forms in which it may be made or allof the modes of its use, it is declared that what is claimed is 1. Acutting-tool comprising in its construction blades provided with curvedcutting edges overlapping at their inner ends, and every part of whichis a tangent of the circle made by their revolution, as set forth.

2. A cutting-tool comprising in its construction blades provided withcutting edges overlapping at their inner ends and. extending outside thecenter, and a diagonal web connecting the inner ends of the cuttingedges, as set forth.

3. Acutting-tool comprisingin its construction curved blades inclined inopposite directions with respect to the axis of the tool and lappingpast each other, and a milled pattern formed in one side of each bladein line with the said axis, as set forth.

4. A cutting-tool comprising in its construction blades havinglongitudinally beveled edges, said blades being inclined in oppositedirections with respect to the axis of rotation of the tool, a milledpattern formed in one side of each blade and a single bevel on thehorizontal edge of each blade to form the cutting edge thereon, as setforth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 2d day of January, A. D.1894.

ALBERTU$ IIUSSE Y. lVitnesses:

G. P. TURNER, ROBERT C. Hossnv.

